What about the hi-res WAV files that have been made available with previous releases?
It's not just because he likes it. It's because vinyl sells more than CDs now, and unless you've got some big names on there, film soundtracks and scores don't sell incredibly well either.
Judging from all the trilogy CDs I've seen still sitting around in record stores, I would say it hasn't sold THAT well. Hell, every time I see them and am tempted to buy them, I hold off because I have the hi-res files at home.TR released the trilogy on CD and it obviously sold so there’s zero reason not to put out Deviations and Watchmen on CD.